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140110902 = 232192291789
BaseRepresentation
bin10000101100111…
…10110000110110
3100202122101000200
420112132300312
5241332022102
621523021330
73320631411
oct1026366066
9322571020
10140110902
11720a8438
123ab0a846
1323048979
1414872b78
15c47951c
hex859ec36

140110902 has 48 divisors (see below), whose sum is σ = 321126000. Its totient is φ = 44027712.

The previous prime is 140110877. The next prime is 140110907. The reversal of 140110902 is 209011041.

140110902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140110907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77424 + ... + 79212.

It is an arithmetic number, because the mean of its divisors is an integer number (6690125).

Almost surely, 2140110902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140110902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160563000).

140110902 is an abundant number, since it is smaller than the sum of its proper divisors (181015098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140110902 is a wasteful number, since it uses less digits than its factorization.

140110902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 140110902 is about 11836.8451033204. The cubic root of 140110902 is about 519.3864830401.

Adding to 140110902 its reverse (209011041), we get a palindrome (349121943).

The spelling of 140110902 in words is "one hundred forty million, one hundred ten thousand, nine hundred two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 229 342 458 687 1374 1789 2061 3578 4122 4351 5367 8702 10734 13053 16101 26106 32202 33991 39159 67982 78318 101973 203946 305919 409681 611838 819362 1229043 2458086 3687129 7374258 7783939 15567878 23351817 46703634 70055451 140110902